Lots of Veterans
The founding members of Hells Angels were veterans of WWII. The name of the club was inspired by the Flying Tigers' "Hells Angels" squadron. This helped lots of veterans find like-minded individuals after getting out of wars, although the Hells Angels are generally considered to be bad people.
Death Head Logo
The most recognizable symbol of the Hells Angels is their official "death head" logo, designed by the former president of the San Francisco chapter, Frank Sadilek. The death head logo is that skull with wings that usually sits on the back of Hells Angels vests.